Author: WeWorldMedia-admin

U.S. propane inventories are well stocked heading into the winter heating season

Published: 7 October 2025
Categories: US Energy Information Administration

RSS feed source: US Energy Information Administration

In-brief analysis

October 7, 2025

The United States is well stocked with propane heading into the winter. For the week ending September 26, U.S. propane inventory was 103 million barrels, about 13 million barrels more than the previous five-year average for this time of year, based on data in our Weekly Petroleum Status Report.

Propane inventories reflect supply and demand balances. Propane demand is greatest in the winter months because propane is used as the main heating fuel in about 5% of U.S. homes, primarily in the northern parts of the Midwest and Northeast. For propane supply, propane gas plant production increased 5% in the first seven months of this year compared with the same period in 2024.

U.S. propane inventories typically increase from April through September, when there is less demand, and decrease from October

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Scientists accidentally create a tiny “rainbow chip” that could supercharge the internet

Published: 7 October 2025
Categories: Engineering News

RSS feed source: US Energy Information Administration

Researchers at Columbia have created a chip that turns a single laser into a “frequency comb,” producing dozens of powerful light channels at once. Using a special locking mechanism to clean messy laser light, the team achieved lab-grade precision on a small silicon device. This could drastically improve data center efficiency and fuel innovations in sensing, quantum tech, and LiDAR.

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When sunshine became cheaper than coal

Published: 7 October 2025
Categories: Engineering News

RSS feed source: US Energy Information Administration

Solar energy is now the cheapest source of power worldwide, driving a massive shift toward renewables. Falling battery prices and innovations in solar materials are making clean energy more reliable than ever. Yet, grid congestion and integration remain key challenges. Experts say smart grids and sustained policy support are crucial to accelerate the transition.

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Radiation worker exposure

Published: 6 October 2025
Categories: IAEA

RSS feed source: US Energy Information Administration

Radiation worker exposure

Print View Posted on: 07 October 2025

Event Date: 13 January 2025 Event Type: Irradiation/Accelerator Facility Event Location: Czech Republic, Nuclear Physics Institute, Praha INES Rating: 2 (Final)

On 13. 1. 2025, the lcencee reported a radiation emergency when an unplanned radiation exposure of a radiation worker occurred. The worker was in the radiation room with a source of ionizing radiation – the Chisostat SO 1 irradiator, which contained a sealed radionuclide source (“URZ”) Co-60 with an activity of 30TBq as of 13. 1. 2025. At the time of the preparatory work, the source was not in a shielded position. The total time the worker spent in the radiation room during 2 entries (7. 1. 2025 and 13. 1. 2025) was about 12.5 minutes.

The investigation found that the last time the irradiator was used on 18. 12. 2024, it was incorrectly turned off. The irradiator was turned off by the main circuit breaker (not via the main control console), therefore the source was not put into the shielded position. It was also found that the backup power source (UPC), which would ensure the insertion of the

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